• KSII Transactions on Internet and Information Systems (TIIS)
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• v.6 no.6
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• pp.1522-1545
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• 2012

Call admission control (CAC) plays an important role in mobile cellular network to guarantee the quality of service (QoS). In this paper, a dynamic hybrid CAC scheme with integrated cutoff priority and handoff queue for mobile cellular network is proposed and some performance metrics are derived. The unique characteristic of the proposed CAC scheme is that it can support any number of service types and that the cutoff thresholds for handoff calls are dynamically adjusted according to the number of service types and service priority index. Moreover, timeouts of handoff calls in queues are also considered in our scheme. By modeling the proposed CAC scheme with a one-dimensional Markov chain (1DMC), some performance metrics are derived, which include new call blocking probability ($P_{nb}$), forced termination probability (PF), average queue length, average waiting time in queue, offered traffic utilization, wireless channel utilization and system performance which is defined as the ratio of channel utilization to Grade of Service (GoS) cost function. In order to validate the correctness of the derived analytical performance metrics, simulation is performed. It is shown that simulation results match closely with the derived analytic results in terms of $P_{nb}$ and PF. And then, to show the advantage of 1DMC modeling for the performance analysis of our proposed CAC scheme, the computing complexity of multi-dimensional Markov chain (MDMC) modeling in performance analysis is analyzed in detail. It is indicated that state-space cardinality, which reflects the computing complexity of MDMC, increases exponentially with the number of service types and total channels in a cell. However, the state-space cardinality of our 1DMC model for performance analysis is unrelated to the number of service types and is determined by total number of channels and queue capacity of the highest priority service in a cell. At last, the performance comparison between our CAC scheme and Mahmoud ASH's scheme is carried out. The results show that our CAC scheme performs well to some extend.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.217-219
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• 2018

The method on reconfiguring job priority in service queue has been developed to provide seamless service and to enhance operability of Data Service Platform(DSP) in Korean e-Navigation project that performed by Ministry of Oceans and Fisheries(MOF) since 2016. It plays a critical role for providing seamless services of DSP to expect which services ships request to DSP and how much time it costs to make services for responding them to ships in advance. Therefore, as developing a method on reconfiguring jobs in service queue of DSP with a noble algorithm to analyse priority index in parallel, DSP can provide seamless services to ships regardless of data volume and the number of requests that stacked in service queue.

• Journal of Korean Academy of Nursing Administration
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• v.10 no.4
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• pp.495-513
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• 2004

As this study is the descriptive research study that tries to present the basic data aiming to establish a role of nurses for the Community Welfare Center, by surveying the role expectation and the degree of role performance towards nurses for the Community Welfare Center that nurses for the Community Welfare Center and social workers recognize, it carried out the Questionnaire research targeting nurses who are working for the Community Welfare Center located in Seoul and social workers of institutions where nurses are working, and then analyzed the results, and the study results are as follows. Both the group of nurses and the group of social workers were highly recognizing the necessity and the importance of nurses for the Community Welfare Center, and expected that more effective services will be possible to be offered by means of that nurses do work for the Community Welfare Center. However, compared to the degree that social workers recognize a nurses specialty, the nurses thought that their specialty is not acknowledged in the Community Welfare Center, and even in case of duty friction between groups being felt while social workers and nurses are working together, nurses were experiencing further friction of duties. While nurses are well recognizing their roles, they are statistically and significantly recognizing the degree of role performance lower than expected, thus the difference between the role expectation and the role performance could be seen. Also, the group of nurses showed the higher role expectation towards nurses than the group of social workers, and in relation to roles of a counselor, referral resource, an advocator, an educator, a case manager, a and a coordinator, the degree of role expectation by the group of nurses is statistically and significantly higher than the group of social workers, thus it could be seen that there is difference in the expectation degree between both groups, as to a role of nurses for the Community Welfare Center. In particular, as to a role of universally medical services, the expectations between nurses and social workers showed mutual agreement, but in relation to a role of nurses for community in the more expanded sphere, social workers did not show a receptive attitude, thus it was indicating that there exists an element of role conflict. In relation to the role performance of nurses for the Community Welfare Center, nurses were feeling the disorder degree more than social workers, in all items of disorder factors, and there was difference in recognition between nurses and social workers, as to the priority of disorder factors. Because of, through this study, having been found the difference in recognition of role expectation, the degree of role performance, and a disorder factor between nurses and social workers, as to the nurses for the Community Welfare Center, it is required a study with a more diversified method on a role of nurses for the Community Welfare Center.

• Journal of the Korean Institute of Oriental Medical Informatics
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• v.21 no.2
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• pp.11-23
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• 2015

Objectives : Through a comparative study between Sasang constitutional medicine and Syndrome identification and treatment medicine about the theory of diagnosis, the theory of herbal medicine, the theory of prescription, the theory of acupuncture and constitutional medicine to put forward a complementary perfect solution which has good clinical utility. Methods : We compared and sorted out the textbook of Korean Sasang constitutional medicine which named Sasang medicine, and also the textbook of Chinese TCM which was including Basic theory of TCM, Diagnostics of TCM, Science of Chinese materia medica, Pharmacology of traditional Chinese medical formulae, Science of acupuncture and moxibustion, Constitution of TCM, and also related papers. Results : (1) Through a comparative study between Sasang constitutional medicine and Syndrome identification and treatment medicine about diagnosis, herbal medicine, prescription and acupuncture, Sasang constitutional medicine is a medical system which gives priority to balance of organs, when Syndrome identification and treatment medicine is a medical system that gives priority to improve symptom. (2) The prescriptions of Sasang constitutional medicine are used for the treatment of basic pathogenesis in the chronic stage of the disease, which can recover vital qi, when Syndrome identification and treatment medicine are used for the treatment of stage pathogenesis in the acute stage of the disease, which can get rid of pathogenic factors. (3) There are two kind of complementary perfect solution between Sasang constitutional medicine and Syndrome identification and treatment medicine. One perfect complementary medicine is that Sasang constitutional medicine plays a major role when Syndrome identification and treatment medicine plays a supporting role. The other one is that Syndrome identification and treatment medicine plays a major role when Sasang constitutional medicine plays a supporting role. It determined by the usual symptoms and the symptoms now, vital qi and pathogenic factors, symptom and the root cause, acute stage and chronic stage, and the state of pathogenesis. Conclusion : A new perfect complementary medicine can be created which is based on the setting that Sasang constitutional medicine primarily treat the usual symptoms, vital qi, the root cause, chronic stage and basic pathogenesis when Syndrome identification and treatment medicine primarily treat the symptoms now, pathogenic factors, symptom, acute stage and stage pathogenesis.

• Journal of Korean Philosophical Society
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• v.145
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• pp.325-350
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• 2018

The overemphasis of the priority of reason over will runs the risk of resulting in intellectual determinism. On the contrary, it is also unfair to underestimate the role of reason in Saint Thomas Aquinas' theory of the free will to avoid intellectual determinism. For, according to Thomas, "the will inclines to the good, insofar as it is an appetite, and it follows the judgment of the reason in the pursuit of the good, insofar as it is a 'rational' appetite." It is the objective of this article to show that, for Thomas, the idea of the free will is not contradictory to that of the will's following the judgment of reason. For this purpose, it is decisive to adequately evaluate the role of reason in Thomas's theory of the free will. This article therefore proves that in principle Thomas argues the priority of the will over reason as well as the freedom of the will, and that he nevertheless recognizes the role of reason which precedes the choice of the will by making the second-level judgment even when the will chooses not to follow the first-level judgement of reason. It is entirely up to the will to follow the judgement and order of reason or not. It explains the freedom of the will. But 'not to follow reason' is contradictory to the essential determination of the will as the 'rational' appetite. For from the will's not following reason, wrong-doing follows; the human act which does not conform to reason. This article therefore argues that for Thomas, the 'true' liberty of the will corresponding to its determination as the rational appetite consists in its following the rule and order of reason, not in acting against the judgement of reason.

• Women's Health Nursing
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• v.24 no.3
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• pp.287-296
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• 2018

Purpose: To determine impacts of psychological distress, gender role attitude, and housekeeping sharing on quality of life of gynecologic cancer survivors. Methods: Subjects completed questionnaires consisting of four measurements: FACT-G (ver. 4) for quality of life, anxiety and depression from SCL-90-R for psychological distress, gender role attitude, and housekeeping sharing. A total of 158 completed data sets were analyzed by descriptive statistics, independent t-test, ANOVA, Pearson's correlation coefficient, and multiple regression analysis using SPSS 21.0 program. Results: Quality of life was significantly and negatively correlated with psychological distress (r=-0.64, p<.001), but not with gender role attitude (r=-0.14, p=.820) or housekeeping sharing (r=0.08, p=.350). Psychological distress was significantly and positively correlated with gender role attitude (r=0.25, p<.010). Factors that significantly impacted quality of life were type of cancer (t=2.27, p=.025), number of treatment methods (t=2.58, p=.011), education level (t=3.33, p<.001), and psychological distress (t=-9.96, p<.001). Conclusion: Nursing interventions that can relieve psychological distress need to be developed for gynecologic cancer survivors. Nurses need to put priority on ovarian cancer survivors who have low education level with multiple treatment methods when performing nursing interventions to improve the quality of life of gynecologic cancer survivors.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.21-21
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• 2011

Many Asian countries are suffered from various problems on water, which include the need for increased access to improves water supplies and sanitation through investments in infrastructure and capacity building, the balances water management system between development and ecosystem, and the need to reduce the human populations'vulnerability to water-related disasters, in particular, from climate variability and evolution. Decison makers are the most influential people in policy making and solving global water problems is central issue in eradicating poverty and achieving sustainable development (MDG). They across the world form an integral part of the architecture of national or regional governance. Their role covers a range of decision-making processes including passing legislation, scrutinizing government policy, and representing citizen through the election. We must ensure that these quiet but important issues get the political space, financial priority and public attention they deserve. Regional bodies such as the EU have also enacted legislation which introduces rules on water quality and other enforceable mattera across state boundaries. With this growing body of laws and policies on water issues, the role of decision makers is growing. Recognizing this role, decison makers' platform is essential to provide an opportunity to discuss crucial water issues in each country or region and for the purpose "2010 Parliaments for Water in Asia" has planned and organized to investigate our common issues and goals. During the meeting, we have an opportunity to observe water policy of Bangladesh, Bhutan, China, Mongolia, New Zealand and the Philippines and share the views on what needs to be done to move forward by decision makers for the future of water. In conclusion, the process of developing the decision makers' platform in each region would be ultimately essential point to increase the awareness of the developed and developing countries' roles, knowledge to clarify roles and responsibilities of each stake holders and finally be a major actor for resolving not only water challenges also issues of human settlements.

• Korean Journal of Health Education and Promotion
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• v.31 no.5
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• pp.121-133
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• 2014

Objectives: The purpose of this study was to analyze the roles of workforce required for effective execution of health promotion programs of community health centers in Korea. Methods: Survey was undertaken on 92 people in community health centers and the Analytic Hierarchy Process was employed in order to obtain results regarding the relative importance of role required for health educators. Results: The analysis suggests that of all 5 categories, 'Assess needs for health education' and 'Evaluate health promotion programs and Conduct related research' were relatively more important than the other categories of role. Taking into account the weightings of the main categories and the subcategories, the analysis shows that the order of importance follows, 'Use existing health-related statistical data', 'Collect health-related data', 'Survey method and knowledge and skills related to health statistics', 'Write an evaluation report', 'Understand and apply health education planning theories'. Conclusion: As a health promotion expert of community health center, a health educator is preferentially required to perform 1) the role to analyze the needs of the community and enable the planning for a customized health promotion program, 2) the role to execute evaluation throughout a health promotion programs and disseminate evaluation findings and apply them in following programs, in consideration of higher relative importance of these roles.

• Journal of KIISE:Information Networking
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• v.36 no.4
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• pp.286-296
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• 2009

A major challenge in next generation optical Internet (NGOI) networks based on dense-wavelength division multiplexing (DWDM) is the provision of guaranteed quality-of-service (QoS) for a wide variety of multimedia applications. One of the critical issues in NGOI is the routing and wavelength assignment problem that is embossed as very important and plays a key role in improving the global efficiency for capacity utilization. But the previous researches had the delay problem, and the path routed by higher priority nodes may be congested and interfere with potential future multicast session requests. To overcome these problems, in this research we suggest a Priority-based Minimum Interference Path Multicast Routing (PMIPMR) algorithm, a new routing algorithm which finds alternative routes based on node priorities and Virtual Source (VS) nodes that has both splitting and wavelength conversion, and then chooses a path that does not interfere with potential future multicast session requests when congestions occur in the network. The PMIPMR algorithm reduces blocking rate significantly and increases the wavelength utilization by avoiding congestion in future multicast session requests.

• Journal of Korea Technology Innovation Society
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• v.17 no.1
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• pp.195-218
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• 2014

Recently, due to the global economic crisis and prolongation of slow growth period, many countries have proposed creative economy as an important policy for economic growth. Korea has also progressed important policies such as development of creative industries, start-up activation and employment creation through creative economy as a key policy. However, each country has a different definition of creative economy and detailed field to promote, and there is a lack of research on creative economy of industrial complexes and activation plans of creative industries. This study derived the priority order and importance of development plans to develop into creative clusters through AHP analysis base on Gumi National Industrial Complex that have had a significant role in the national economy since the 1970s. As a result, the creativity enhancing factor was the highest priority, followed by creative infrastructure and network. These results mean that it is necessary to promote creativity in order national industrial complexes to continuously lead national economy and for this purpose it needs to prioritize the development of creative human resources and to extend the creative R&D. This study can be provided to government and local policy makers and innovation agencies as basis data and practical policy guide to establish a successful creative cluster by deriving the priority order in reflection of both hardware and software policies such as infrastructure to develop national industrial complex into creative cluster.